BAE Systems’ parallel HybriDrive green propulsion system for Class 6 to 8 vocational trucks is based on a single electric machine integrated between the engine and transmission. The system enhances propulsion through an optimized blending of internal combustion engine power and electric power, resulting in lower fuel consumption and reduced emissions. Power and torque ratings range from 95 to 145 hp and 300 to 400 lb ft. The HybriDrive system is designed to support large bore heavy duty engines ranging from 350 to 600 hp with torque ratings of 750 to 2,150 lb ft.